package com.uinnova.springboot.demo.web.filter;

import javax.servlet.*;
import java.io.IOException;

/**
 * @author 张攀钦
 * @date 2018/12/21-19:30
 * 使用注解标注过滤器
 * @WebFilter将一个实现了javax.servlet.Filter接口的类定义为过滤器
 * 属性filterName声明过滤器的名称,可选
 * 属性urlPatterns指定要过滤 的URL模式,也可使用属性value来声明.(指定要过滤的URL模式是必选属性)
 */
public class MyFilter2 implements Filter {

    @Override
    public void destroy() {
        System.out.println("MyFilter2-过滤器销毁");
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain chain) throws IOException, ServletException {
        System.out.println("MyFilter2-执行过滤操作");
        response.setContentType("text/html;charset=UTF-8");
        chain.doFilter(request, response);

    }

    @Override
    public void init(FilterConfig config) throws ServletException {
        System.out.println("MyFilter2-过滤器初始化");
    }

}